An equation of a circle is given as (x + 6) ² + (y - 7) ² = 81. Find the center and radius of the circle. Show all work to receive full credit.

Center is (-6,7) and radius is 9. A circle with a center at (h, k) and a radius of r has the equation (x-h) ^2 + (y-k) ^2=r^2 so h = - 6 k = 7 r is 9 you just work back wards, what two numbers multiplied gives you 81? Well 9